Linked Questions

3
votes
2answers
188 views

Pentax K-x with kit lenses problem producing sharp photos [duplicate]

Hey guys I have recently dug out old Pentax K-X with kit lenses, but I noticed I struggle with sharpness of the photos. No matter what settings I try I get my photos blurry when I crop it to make ...
0
votes
2answers
262 views

Can't get sharp focus on Canon 7D at 250mm f/32 [duplicate]

I'm an accomplished photographer (at least I thought I was) until I shot and re-shot a scene and it keeps turning out soft. Settings: Canon 7D... 250 mm...f29...manual focus...1/40 exposure I used a ...
64
votes
7answers
20k views

What is a “diffraction limit”?

I've seen the term used, but what is a "diffraction limit", when should I worry about it, and what undesirable effects are a result of it ?
21
votes
9answers
6k views

What's the benefit of a tiny aperture?

In this answer to another question Rob Clement wrote: Think background first. What story do you want to tell? Epic background, big mountains. Looking to deliver a sense of grandeur with your ...
17
votes
5answers
3k views

How do I find the aperture that produces the highest-quality images for a given lens?

I'm not talking about large aperture (f/1.8, f/2.8...), rather, about small apertures (f/18, f/20, f/23...). I read somewhere (actually I think it was on this site, but I don't exactly remember which ...
10
votes
2answers
4k views

How to stop a high F number from appearing blurry?

I have been out taking some evening photos (just after sunset) and I have noticed that in a number of instances the higher f numbers ( 14+ ) are appearing more blurred than the lower f numbers ( < ...
8
votes
2answers
1k views

What's the difference between a wide angle lens and a landscape lens?

Question pretty much says it all. Seems like when I look around people are asking "what's the best wide angle lens for landscape?", but on sites like LensHero they categorize wide angle and landscape ...
14
votes
4answers
1k views

Where to focus when shooting landscapes?

When I am shooting landscapes, where (at what point) should I focus when using Auto Focus? Or if I am shooting the lit up skyline of the city, what should be my focus point? The reason I ask is that ...
7
votes
6answers
1k views

Does sensor size impact the diffraction limit of a lens?

My understanding of diffraction, is that with a small aperture the 'airy disk' (which I understand is the pattern light from a given direction relative to the lens will form on passing through the ...
2
votes
2answers
9k views

Focusing on hyperfocal distance with Nikkor 35mm f/1.8G prime lens [duplicate]

I have a Nikkor 35mm f/1.8G lens on a Nikon D7000 body. I have a theoretical understanding of hyperfocal distance. And it seems like the lenses with an clear indication of "infinite" focus point are ...
0
votes
2answers
4k views

What impact on image resolution does the aperture have?

What is the effects on depth of field, signal to noise ratio and image resolution when reducing the aperture?
0
votes
3answers
611 views

Why are my product photographs not sharp?

I just bought a Canon 750D. The picture has too much noise. The detail/shine of the diamond is not really showing. I am also using a tripod and timer. The lens is the EF-S 18-55mm ƒ/3.5-5.6 IS STM. ...
6
votes
4answers
842 views

Can the diffraction limit be overcome with superresolution?

As the title says, can the diffraction limit be overcome with superresolution techniques? Or is this the absolute hard limit in optical photography without making special assumptions? If this is the ...
2
votes
4answers
574 views

How properly expose a long exposure in daylight?

I was shooting some lake waves with some nice color in them, and I wanted to do a long exposure to smooth out the wave and color, similar to the effect you see from a long exposure of whitewater or a ...
1
vote
3answers
2k views

How does sensor size impact depth of field and diffraction for macro photography?

Macro photographers often stop down to very small apertures to maximize the razor thin depth of field when operating at such close focus distances. Smaller sensors have greater depth of field than ...

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